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FastStone Image Viewer is a fast, stable, and user-friendly image browser, converter, and editor. It offers a robust suite of features, including image viewing, management, side-by-side comparison, red-eye removal, emailing, resizing, cropping, and comprehensive color adjustment tools—making it highly suitable for users seeking the best lightweight photo viewer and organizer for Windows with advanced editing features.
Its innovative yet intuitive full-screen mode provides immediate access to EXIF data, a thumbnail browser, and essential functions through hidden toolbars that appear when the mouse reaches the edges of the screen. Additional capabilities include a high-quality magnifier, a musical slideshow creator with more than 150 transitional effects, lossless JPEG transitions, drop-shadow effects, image annotation tools, scanner support, histogram display, and more.
FastStone Image Viewer supports all major graphic formats, including BMP, JPEG, JPEG 2000, animated GIF, PNG, PCX, TIFF, WMF, ICO, and TGA. It handles RAW formats, including CRW, CR2, NEF, PEF, RAF, MRW, ORF, SRF, and DNG, delivering a useful range for casual users and pro photographers.
FastStone Image Viewer Features:
- True Full-Screen viewer with image zoom support and unique fly-out menu panels
- Crystal-clear and customizable one-click image magnifier
- Powerful image editing tools: Resize/resample, rotate/flip, crop, sharpen/blur, adjust lighting/colors/curves/levels, etc.
- Eleven resampling algorithms to choose from when resizing images
- Image color effects: grayscale, sepia, negative, Red/Green/Blue adjustment
- Image special effects: annotation, drop shadow, framing, bump map, sketch, oil painting, lens
- Draw text, lines, highlights, rectangles, ovals, and callout objects on images
- Clone Stamp and Healing Brush
- Superior Red-Eye effect removal/reduction with a completely natural-looking result
- Multi-level Undo/Redo capability
- One-touch best fit/actual size image display support
- Image management, including tagging capability, with drag-and-drop and Copy To/Move To Folder support
- Histogram display with color counter feature
- Compare images side by side (up to 4 at a time) to easily cull those forgettable shots.
- Image EXIF metadata support (plus comment editing for JPEGs)
- Configurable batch processing to convert/rename large or small collections of images
- Slideshow creation with 150+ transition effects and music support (MP3, WMA, WAV…)
- Create efficient image attachments for emailing to family and friends
- Print images with full layout control
- Create fully configurable Contact Sheets
- Create memorable artistic image montages from your family photos for personalized desktop wallpapers (Wallpaper Anywhere)
- Acquire images from the scanner. Support batch scanning to PDF, TIFF, JPEG, and PNG
- Versatile screen capture capability
- Powerful Save As interface to compare image quality and control the generated file size
- Run favorite programs with one keystroke from within Image Viewer
- Offer a portable version of the program that can be run from a removable storage device
- Support dual-monitor configurations
- Configurable mouse wheel support
- Support multiple program skins
- Support touch interface (tap, swipe, pinch)
- And much more…
FastStone Image Viewer – Pros & Cons
| Pros | Cons |
|---|---|
| ✓ Supports major image formats plus a wide selection of RAW formats, making it suitable for both everyday photos and professional camera files. | ✗ The documented operating-system support is limited to Windows XP, Vista, 7, 8, 8.1, 10, and 11. |
| ✓ Provides comprehensive editing tools for resizing, cropping, sharpening, color adjustment, effects, annotation, cloning, healing, and red-eye correction. | ✗ Its extensive collection of viewing, editing, organizing, batch-processing, scanning, and presentation tools may be more than users need for basic photo viewing. |
| ✓ Can compare up to four images side by side, which is useful for quickly selecting the best shots from a collection. | ✗ The full-screen interface hides toolbars until the mouse reaches the screen edges, which may require some adjustment for users accustomed to permanently visible controls. |
| ✓ Supports batch conversion and renaming, scanner input, screen capture, contact sheets, printing, and customizable slideshows with more than 150 transitions. | ✗ The slideshow creator includes more than 150 transition effects and music support, but users seeking only straightforward image browsing may have little use for these presentation features. |
| ✓ Offers a portable version, dual-monitor support, touch controls, multiple skins, and configurable mouse-wheel behavior for flexible use on different Windows setups. | ✗ The software combines photo management with advanced editing, scanning, screen capture, printing, and other utilities, which can make it feel broader than a dedicated lightweight image viewer. |
Frequently Asked Questions
Can FastStone Image Viewer edit RAW photos?
Yes. It supports a wide range of RAW formats, including CRW, CR2, NEF, PEF, RAF, MRW, ORF, SRF, and DNG. It also provides editing tools for resizing, cropping, sharpening, color adjustment, and other image corrections.
Can FastStone Image Viewer convert and rename multiple images at once?
Yes. Its batch-processing tools can convert and rename large or small collections of images. This is useful when processing many photos without handling each file individually.
Does FastStone Image Viewer support SVG files?
Yes. SVG support was added in the latest documented release, allowing the viewer to handle SVG images alongside its existing collection of major graphic and RAW formats.
What is the difference between FastStone Image Viewer and IrfanView?
Both are lightweight Windows image viewers with additional image-management and editing capabilities. However, the provided article does not contain enough information about IrfanView to make a reliable feature-by-feature comparison.
What’s New in FastStone Image Viewer 8.5:
Release Date 2026-06-23
- Added support for SVG format
- Added Start importing automatically and Handle duplicate file names automatically options to the Import Photos and Videos tool
- WebP files can now be rotated and saved with a single click
- Enhanced dark theme support in the PDF viewer
- Fixed a bug where some links in PDF files were not clickable
- Other improvements and bug fixes
Official Homepage – https://www.faststone.org
Supported Operating Systems:
- Windows XP, Vista, Windows 7, 8, 8.1, 10, 11.
